US20110120820A1 - Shaft brake disc, in particular for a rail vehicle - Google Patents

Shaft brake disc, in particular for a rail vehicle Download PDF

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Publication number
US20110120820A1
US20110120820A1 US13/054,649 US200913054649A US2011120820A1 US 20110120820 A1 US20110120820 A1 US 20110120820A1 US 200913054649 A US200913054649 A US 200913054649A US 2011120820 A1 US2011120820 A1 US 2011120820A1
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US
United States
Prior art keywords
shaft brake
brake disk
clamping ring
hub
prongs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
US13/054,649
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US8684144B2 (en
Inventor
Peter Seifert
Matthias Niessner
Rudolf Lutz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
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Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
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Assigned to KNORR-BREMSE SYSTEME FUR SCHIENENFAHRZEUGE GMBH reassignment KNORR-BREMSE SYSTEME FUR SCHIENENFAHRZEUGE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LUTZ, RUDOLF, NIESSNER, MATTHIAS, SEIFERT, PETER
Publication of US20110120820A1 publication Critical patent/US20110120820A1/en
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Publication of US8684144B2 publication Critical patent/US8684144B2/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F16D65/123—Discs; Drums for disc brakes comprising an annular disc secured to a hub member; Discs characterised by means for mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F16D65/123—Discs; Drums for disc brakes comprising an annular disc secured to a hub member; Discs characterised by means for mounting
    • F16D65/124—Discs; Drums for disc brakes comprising an annular disc secured to a hub member; Discs characterised by means for mounting adapted for mounting on the wheel of a railway vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1312—Structure circumferentially segmented
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1316—Structure radially segmented
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1328—Structure internal cavities, e.g. cooling channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/134—Connection
    • F16D2065/1356—Connection interlocking
    • F16D2065/136—Connection interlocking with relative movement radially
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/134—Connection
    • F16D2065/1384—Connection to wheel hub
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/134—Connection
    • F16D2065/1392—Connection elements

Definitions

  • Disclosed embodiments relate to a shaft brake disk, in particular for a rail vehicle.
  • Such a shaft brake disk is disclosed by DE 38 14 614 A1.
  • Connecting flanges which are arranged on the inner circumference of the friction ring and extend radially inwards, and through which bolts, engaging in the hub, are guided, are provided for fastening the friction ring to a hub or shaft of a rail vehicle.
  • clamping ring through which the bolts are guided and supported thereon by their head or comparable parts, is intended, among other things, to prevent the bolts being subjected to bending stresses in the event of a shift in the position of the connected parts.
  • the clamping ring on the other hand is not suited to the transmission of braking torques, since the bolts are guided with a certain degree of play both through the clamping ring and through the connecting flanges.
  • disclosed embodiments provide a shaft brake disk of the generic type that improves its working reliability and service life and to allow more cost-effective manufacturing.
  • FIG. 1 shows a front view of a shaft brake disk according to the invention
  • FIG. 2 shows a section through the shaft brake disk along the line II-II in FIG. 1
  • FIG. 3 shows a further section through the shaft brake disk along the line III-III in FIG. 1
  • FIGS. 4 and 5 each show a perspective view of a component of the shaft brake disk.
  • the positive interlocking of the clamping ring and the hub serve reliably to center the clamping ring even if the friction ring, due to a thermally induced radial expansion, is incapable of affording radial support for the clamping ring.
  • clamping ring is held by the hub, in which positively interlocking parts, preferably formed onto the clamping ring, engage, for example in the form of prongs, which engage in end-face slots of the hub.
  • At least three prongs and corresponding slots are provided, which are in each case oriented radially in relation to the central axis.
  • the resulting torsionally fixed connection of the clamping ring to the hub also allows braking torques to be transmitted to the hub through a frictional bearing contact of the clamping ring against the friction ring.
  • the positively interlocking elements in particular said prongs engaging in slots of the hub, are preferably arranged at the same angular interval on the clamping ring, thereby affording a uniform and hence optimal introduction of force.
  • FIG. 1 represents a shaft brake disk, which comprises a friction ring 1 , which is connected by bolts 4 to a hub 2 .
  • the bolts 4 are screwed into tapped holes 9 provided in the end face of the hub 2 , whilst being guided by their shank through through-holes 10 in the friction ring 9 and through-holes 8 ( FIG. 4 ) in a clamping ring 5 , which bears on connecting flanges 3 of the friction ring 1 on the side facing the hub 2 .
  • This clamping ring 5 forms an abutting support for the bolts 4 , that is to say for their heads, and serves to press the friction ring 1 against the hub 2 .
  • the connecting flanges 3 of the friction ring 1 are uniformly distributed over its inner circumference and extend radially inwards.
  • the clamping ring 5 and the hub 2 interlock positively with one another.
  • the integrally formed clamping ring 5 in the present exemplary embodiment comprises four prongs 6 , which, being preferably formed on, are each of block-shaped design and extend parallel to a central axis X. These prongs 6 arranged at the same angular interval from one another engage in matching slots 7 , which are let into the end face of the hub 2 , the hubs 7 adjoining the tapped holes 9 .
  • At least three prongs have to be provided, which for a uniform transmission of braking torque from the friction ring 1 to the hub 2 should also be arranged at the same angular interval from one another.
  • prongs 6 may be formed onto the clamping ring 5 , but it is also feasible, moreover, to connect these firmly to the clamping ring 5 as separate parts.
  • the hub may naturally also be provided with prongs or projections of some other design, which engage in matching slots or similar depressions of the clamping ring 5 .

Abstract

A shaft brake disc, in particular for a rail vehicle, including a friction ring fastened to a hub by way of screws that are passed through a clamp ring at the inner periphery of the friction ring that sits against support flanges, the clamp ring forming a backing support for the screws, is adapted so that the clamp ring and the hub engage one another in a form-fitted manner.

Description

  • Disclosed embodiments relate to a shaft brake disk, in particular for a rail vehicle.
    • BACKGROUND
  • Such a shaft brake disk is disclosed by DE 38 14 614 A1. Connecting flanges, which are arranged on the inner circumference of the friction ring and extend radially inwards, and through which bolts, engaging in the hub, are guided, are provided for fastening the friction ring to a hub or shaft of a rail vehicle.
  • Here the clamping ring, through which the bolts are guided and supported thereon by their head or comparable parts, is intended, among other things, to prevent the bolts being subjected to bending stresses in the event of a shift in the position of the connected parts.
  • Special locking elements, which on the one hand are held in the hub and which on the other engage in the friction ring, afford protection against torsion. These locking elements serve to transmit the braking torque as well as a prevailing friction grip between the connecting flanges of the friction ring and the hub.
  • The clamping ring on the other hand is not suited to the transmission of braking torques, since the bolts are guided with a certain degree of play both through the clamping ring and through the connecting flanges.
  • This means that in the event of a thermally induced expansion of the friction ring by the clamping ring no adequate centering of the clamping ring is ensured, resulting in additional bending stresses of the bolts.
  • Besides these functional disadvantages, an unfavorable cost structure also ensues in the manufacture of the shaft brake disk, in particular due to the locking elements which have to be manufactured as special parts.
    • SUMMARY
  • Accordingly, disclosed embodiments provide a shaft brake disk of the generic type that improves its working reliability and service life and to allow more cost-effective manufacturing.
    • BRIEF DESCRIPTION OF THE FIGURES
  • An exemplary embodiment of the invention will be described below with reference to the drawings attached, of which:
  • FIG. 1 shows a front view of a shaft brake disk according to the invention;
  • FIG. 2 shows a section through the shaft brake disk along the line II-II in FIG. 1
  • FIG. 3 shows a further section through the shaft brake disk along the line III-III in FIG. 1
  • FIGS. 4 and 5 each show a perspective view of a component of the shaft brake disk.
    •  DETAILED DESCRIPTION
  • In accordance with disclosed embodiments, the positive interlocking of the clamping ring and the hub serve reliably to center the clamping ring even if the friction ring, due to a thermally induced radial expansion, is incapable of affording radial support for the clamping ring.
  • In this case the clamping ring is held by the hub, in which positively interlocking parts, preferably formed onto the clamping ring, engage, for example in the form of prongs, which engage in end-face slots of the hub.
  • Here at least three prongs and corresponding slots are provided, which are in each case oriented radially in relation to the central axis.
  • The resulting torsionally fixed connection of the clamping ring to the hub also allows braking torques to be transmitted to the hub through a frictional bearing contact of the clamping ring against the friction ring.
  • Besides the purely functional advantages described, another particular distinguishing feature of the invention is its implementation in terms of production engineering, since it is possible to dispense with use of the hitherto necessary locking elements described in the state of the art, which previously served to create some protection against torsion between the hub and the friction ring.
  • Since they have to fit precisely, these locking elements can be manufactured only at a corresponding cost, which can now be eliminated.
  • The centering of the clamping ring that is ensured in any operating state avoids additional bending stresses of the bolts, as could occur formerly.
  • Naturally this does not lead to a functional reliability of the shaft brake disk overall, but also to an increase in the service life, since the risk of a fatigue fracture of the bolts is now virtually excluded.
  • The positively interlocking elements, in particular said prongs engaging in slots of the hub, are preferably arranged at the same angular interval on the clamping ring, thereby affording a uniform and hence optimal introduction of force.
  • FIG. 1 represents a shaft brake disk, which comprises a friction ring 1, which is connected by bolts 4 to a hub 2.
  • Here the bolts 4 are screwed into tapped holes 9 provided in the end face of the hub 2, whilst being guided by their shank through through-holes 10 in the friction ring 9 and through-holes 8 (FIG. 4) in a clamping ring 5, which bears on connecting flanges 3 of the friction ring 1 on the side facing the hub 2.
  • This clamping ring 5 forms an abutting support for the bolts 4, that is to say for their heads, and serves to press the friction ring 1 against the hub 2.
  • The connecting flanges 3 of the friction ring 1 are uniformly distributed over its inner circumference and extend radially inwards.
  • According to the invention the clamping ring 5 and the hub 2 interlock positively with one another. For this purpose the integrally formed clamping ring 5 in the present exemplary embodiment comprises four prongs 6, which, being preferably formed on, are each of block-shaped design and extend parallel to a central axis X. These prongs 6 arranged at the same angular interval from one another engage in matching slots 7, which are let into the end face of the hub 2, the hubs 7 adjoining the tapped holes 9.
  • In order to achieve a desired centering of the clamping ring 5 in any operating state, at least three prongs have to be provided, which for a uniform transmission of braking torque from the friction ring 1 to the hub 2 should also be arranged at the same angular interval from one another.
  • Other geometric shapes are obviously also feasible instead of the block-shaped prongs 6. The important thing is that a positive interlock is formed circumferentially and radially between the clamping ring 5 and the hub 2.
  • Here the prongs 6, as mentioned, may be formed onto the clamping ring 5, but it is also feasible, moreover, to connect these firmly to the clamping ring 5 as separate parts.
  • In principle, instead of the slots 7, the hub may naturally also be provided with prongs or projections of some other design, which engage in matching slots or similar depressions of the clamping ring 5.

Claims (11)

1. A shaft brake disk for a rail vehicle having a friction ring, which is fastened to a hub by bolts, which are guided through a clamping ring, which bears against connecting flanges provided on the inner circumference of the friction ring and which provides an abutting support for the bolts, wherein the clamping ring and the hub interlock positively with one another.
2. The shaft brake disk of claim 1, wherein the hub and the clamping ring are provided on their opposing sides with corresponding projections and depressions.
3. The shaft brake disk of claim 1, wherein the projections are embodied as prongs, which engage in slots.
4. The shaft brake disk, of claim 1, wherein the prongs are arranged on the clamping ring and the slots are arranged on the opposing end face of the hub.
5. The shaft brake disk, of claim 1, wherein the prongs are of block-shaped design and extend parallel to a central axis.
6. The shaft brake disk, of claim 1, wherein the prongs are guided through the space formed between two connecting flanges.
7. The shaft brake disk of claim 1, wherein the projections and depressions of the clamping ring and the hub are arranged at the same angular interval.
8. The shaft brake disk of claim 1, wherein at least three corresponding means of interlocking are provided.
9. The shaft brake disk of claim 1, wherein the prongs are formed onto the clamping ring.
10. The shaft brake disk of claim 1, wherein the prongs are connected to the clamping ring as separate parts.
11. The shaft brake disk of claim 1, wherein the projections and depressions extend radially in relation to the central axis.
US13/054,649 2008-07-18 2009-07-13 Shaft brake disc, in particular for a rail vehicle Expired - Fee Related US8684144B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102008033742.0 2008-07-18
DE102008033742 2008-07-18
DE102008033742A DE102008033742B4 (en) 2008-07-18 2008-07-18 Wave brake disk, in particular for a rail vehicle
PCT/EP2009/005067 WO2010006748A1 (en) 2008-07-18 2009-07-13 Shaft brake disc, in particular for a rail vehicle

Publications (2)

Publication Number Publication Date
US20110120820A1 true US20110120820A1 (en) 2011-05-26
US8684144B2 US8684144B2 (en) 2014-04-01

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US13/054,649 Expired - Fee Related US8684144B2 (en) 2008-07-18 2009-07-13 Shaft brake disc, in particular for a rail vehicle

Country Status (18)

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US (1) US8684144B2 (en)
EP (1) EP2304263B1 (en)
JP (1) JP5562330B2 (en)
KR (1) KR101563767B1 (en)
CN (1) CN102099596A (en)
AT (1) ATE533959T1 (en)
AU (1) AU2009270463B2 (en)
BR (1) BRPI0915966A2 (en)
CL (1) CL2011000076A1 (en)
DE (1) DE102008033742B4 (en)
ES (1) ES2376627T3 (en)
MX (1) MX2010013711A (en)
PL (1) PL2304263T3 (en)
PT (1) PT2304263E (en)
RU (1) RU2521878C2 (en)
SI (1) SI2304263T1 (en)
UA (1) UA103900C2 (en)
WO (1) WO2010006748A1 (en)

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US20100263970A1 (en) * 2007-12-21 2010-10-21 Daimler Ag Brake disc and method for the production therof
KR102058535B1 (en) * 2019-05-15 2020-01-22 (주)카템 Brake disc assembly for railway vehicle

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DE202009007591U1 (en) 2009-05-28 2009-08-06 Faiveley Transport Witten Gmbh Hub, brake disc and connection system
KR101683938B1 (en) 2009-06-02 2016-12-07 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Light redirecting film and display using this film
CN101788029B (en) * 2010-03-09 2011-11-09 北京交通大学 Brake disc with double layers of flanges for railway vehicle
KR101223448B1 (en) * 2010-09-28 2013-01-17 현대자동차주식회사 Structure of disc-rotor with a separable adaptor
DE102012110454B3 (en) 2012-10-31 2014-03-13 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Connection of a shaft brake disk of a rail vehicle with a vehicle-side connection element
RU2562082C1 (en) * 2014-08-07 2015-09-10 Открытое акционерное общество Научно-исследовательский и конструкторско-технологический институт подвижного состава (ОАО "ВНИКТИ") Railway vehicle mounted axle brake disc (versions)
KR101616539B1 (en) * 2014-09-25 2016-04-29 유진기공산업주식회사 Brake disc clamping device for railway vehicle
DE102014226147A1 (en) * 2014-12-17 2016-06-23 Bayerische Motoren Werke Aktiengesellschaft Wheel for a motorcycle or a scooter
DE102015111846B4 (en) 2015-07-22 2021-02-18 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Arrangement of a shaft brake disc on a hub
DE102016123370B4 (en) 2016-12-02 2021-09-09 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Brake disc
US10619689B2 (en) * 2016-12-12 2020-04-14 Westinghouse Air Brake Technologies Corporation Ventilated brake disc
WO2019109762A1 (en) * 2017-12-08 2019-06-13 常州中车铁马科技实业有限公司 Brake disc and rail transit vehicle
DE102018131016B4 (en) * 2018-12-05 2021-03-25 Saf-Holland Gmbh Brake disc assembly
DE102019135337B4 (en) * 2018-12-28 2023-06-22 Honda Motor Co., Ltd. ALIMINIUM-CERAMIC COMPOSITE BRAKE ASSEMBLY

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US20100263970A1 (en) * 2007-12-21 2010-10-21 Daimler Ag Brake disc and method for the production therof
KR102058535B1 (en) * 2019-05-15 2020-01-22 (주)카템 Brake disc assembly for railway vehicle

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JP5562330B2 (en) 2014-07-30
PT2304263E (en) 2012-02-01
SI2304263T1 (en) 2012-03-30
AU2009270463B2 (en) 2014-08-14
DE102008033742B4 (en) 2010-08-26
PL2304263T3 (en) 2012-04-30
EP2304263A1 (en) 2011-04-06
ATE533959T1 (en) 2011-12-15
KR20110033182A (en) 2011-03-30
AU2009270463A1 (en) 2010-01-21
DE102008033742A1 (en) 2010-01-21
BRPI0915966A2 (en) 2019-03-19
RU2011106107A (en) 2012-08-27
WO2010006748A1 (en) 2010-01-21
WO2010006748A8 (en) 2010-04-22
UA103900C2 (en) 2013-12-10
US8684144B2 (en) 2014-04-01
KR101563767B1 (en) 2015-10-27
RU2521878C2 (en) 2014-07-10
CL2011000076A1 (en) 2011-08-05
ES2376627T3 (en) 2012-03-15
EP2304263B1 (en) 2011-11-16
JP2011528419A (en) 2011-11-17
CN102099596A (en) 2011-06-15
MX2010013711A (en) 2011-03-29

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